Étude technico-économique de la stabilisation d'argile par des résidus industriels de chaux : application au Québec

This thesis presents a technical and economic study of the stabilization of clay by industrial lime residues. These residues constitute a resource which has a very low economic value. Therefore, the project aims to valorize them as stabilizer of clays which constitute a preponderant soil in Quebec. This technique is based on the development of pozzolanic reactions between the clay particles that transform the clay into a granular media after stabilization. Such a treated soil presents interesting mechanical characteristics for road construction in remote areas or regions with few resources in granular materials. The main objective of the work presented in this study is to understand how a treated clay behaves following stabilization with industrial lime residues, and to calculate the economic gain when used as a substitute for conventional materials. To achieve this goal, several specific objectives have been established, which correspond to the steps followed in the development of the present study.